public class sum {
    public static void main(String[] args) {
        int a = 3,b=10,c=7;
        double w = 12.9,y=3.2;
        System.out.println("a." + a + b * c);
        System.out.println("b." + (a - b - c));
        System.out.println("c." + a / b);
        System.out.println("d." + b / a);
        System.out.println("e." + (a - b / c));
        System.out.println("f." + w / y);
        System.out.println("g." + y / w);
        System.out.println("h." + a + w / b);
        System.out.println("i." + a % b / y);
        System.out.println("j." + b % a);
        System.out.println("k." + w % y);
    }
}
